Ventricular septal defect (VSD) - Symptoms causes - Mayo Clinic A ventricular septal defect (VSD) is a hole in the heart It's a common heart problem present at birth (congenital heart defect) The hole occurs in the wall that separates the heart's lower chambers (ventricles) A VSD changes how blood flows through the heart and lungs Oxygen-rich blood gets
Median arcuate ligament syndrome (MALS) - Symptoms and causes Median arcuate ligament syndrome, also called MALS, happens when the band of tissue in the upper belly area presses on the artery that sends blood to the stomach, spleen and liver This tissue is called the median arcuate ligament The artery is called the celiac artery The median arcuate ligament